A time code generator for a time code recording apparatus, in which, when recording video signals at a speed of N times, a corresponding time code is generated. The time code value is incremented from the initial value of time code at N frame steps, the time code value skipped at this time is interpolated, and the incremented time code value and the interpolated time code value are arranged and issued in a specified sequence.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A time code generator for generating a time code to be recorded together with video signals of N times speed, N being an integer of 2 or more, comprising: system control means for issuing a mode signal for setting an operating state of N times speed recording of said video signals, time code preset means for setting an initial value of said time code, time code counting and correcting means for receiving said mode signal and said initial value of said time code, and for outputting N values of said time code at every period of a control signal, time code signal output means for arranging and issuing the output of said time code counting and correcting means continuously in time sequence.
2. The time code generator of claim 1 , wherein said time code counting and correcting means includes correcting value generating means which comprises: a counter having an output which increases by N response to said every control signal, a generator for generating at least N 1 interpolating values for said time code.
3. The time code generator of claim 2 , wherein said time code counting and correcting means includes time code correcting means which comprises: an adder which adds said initial value of said time code and the output of said counter to obtain an adder output.
4. The time code generator of claim 3 , wherein said time code counting and correcting means includes operating means which comprises at least N 1 operating units each one of which receives the adder output, adds interpolating values of time code thereto, and generates said time code.
5. A time code generator for generating a time code to be recorded together with video signals of N times speed, N being an integer of 2 or more, comprising: system control means for issuing a mode signal for setting an operating state of N times speed recording of said video signals, discrete time code generating means for generating a discrete time code output which includes a discrete time code to be incremented every N frames, operating means for receiving the output of said discrete time code generating means, and for generating said time code by interpolation, and time code signal output means for arranging and issuing said time code generated by said operating means continuously in a time sequence.
6. The time code generator of claim 5 , wherein the operating means comprises at least N 1 operating circuits each one of which receives the discrete time code output of said discrete time code generating means, adds 1 frame or N 1 frame thereto, and generates said time code.
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September 16, 1998
July 2, 2002
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